1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 473 



Habitat. — Northwest British. Columbia. 



Belongs to the group rufula. The autenuoe of the $ are serrate and 

 bristled, the primaries are moderately elongate, with obtuse apices and 

 rounded outer margin. The side pieces of the $ are narrowed beyond 

 middle, somewhat dilated at tip, and inwardly fringed with spines. 

 Toward base is a stout strong, corneous hook, which is obtusely termi- 

 nated. Nearer to tip is another, slender, semi-membraneous, and but 

 slightly curved hook. 



This s])ecies is one of those collected by Captain G-eddes in 1884, and 

 the types, $ and 9 , are in Mr. Neumoegen's collection. It is- one of 

 those perplexing forms that it is difficult to place. The vestiture con- 

 sists of flattened hair; there is an incomplete basal tuft on thorax, and 

 in the $ a distinct tuft near base of abdomen. The $ abdomen is also 

 laterally tufted. The front is clothed with a mixture of scales and hair, 

 and in the $ the palpi reach nearly to the middle of the front. All 

 these characters indicate Mamestra; but the habitus of the insect is so 

 like Tmniocampa and the genitalia are so like those of rufula, that, 

 provisionally at least, and probably finally, the insect is referred here. 



T. utahensis Smith, sp. uov. 



Primaries luteous red-brown, with blackish i^owderings. Median 

 lines indistinct. T. a. very faint, outwardly arcuate. T. p. nearly par- 

 allel with outer margin, faintly geminate, the included space marked 

 with x)ale scales. S. t. line obsolete, barely traceable by a few pale 

 scales. A pale line at base of fringes. Terminal space darker shaded. 

 Orbicular small, round, marked by a few pale scales. Reniform nar- 

 rowly black marked, defined by a few pale scales superiorly, inferiorly 

 black filled. Secondaries pale, fuscoluteous, outwardly darker. Be- 

 neath i^owdery ; with an outer line, punctiform on secondaries; the latter 

 also with a discal spot. Expands 1.20 inches. 



Hahitat. — Utah. 



A very distinct species. Its nearest ally is oviduca, with which it 

 agrees in wing form and pectinate $ autennte. Tlje pectinatious are, 

 however, shorter, the s. t. line is obsolete, and the ordinary spots differ 

 considerably. The side piece of the $ is curved, gradually narrowing, 

 until dilated into the lappet-like tip, which is inwardly spinulose. Near 

 the base is a long, slender, curved corneous process. Nearer to tip is 

 a thick, more membraneous process, regularly tapering to a point. A 

 single S specimen from the late Capt. D. H. Murdock, U. 8. Army, in my 

 collection. (Coll. U. S. N. M.) 



Group INCINCTA. 



As four of the six species of this group are new, a few words defin- 

 ing it may be appropriate. It is less compact than any others of the 

 genus, and the principal characters are the pectinated antennae of the 



